Wharton 4500 series calendar clocks with day and date
4500x.05.Y.S Day Date Clock with yellow/amber illuminated characters
4510x.05.R.S Day Date Clock with red illuminated characters
4600x.05.G.S & 4600x.05.B.S Day Date Clocks with green and blue illuminated characters
Viewing Distances
20m (60ft)
Please note that we base our suggested maximum viewing distances on users with average eyesight working in typical ambient lighting conditions.
Users with below-average vision may experience problems at the maximum quoted ranges or under bright lighting.
Please also be aware that blue illuminated characters can appear slightly out of focus to some people due to variations in the response of the human eye to blue light.
Clocks with blue digits typically have a shorter maximum viewing distance for many people than red, green or yellow/amber characters.
Related Products

4010x.02.Y.S hours, minutes & seconds panel mounting clock with 20mm (0.8″) digits
Viewing Distances
7m (21ft)
Please note that we base our suggested maximum viewing distances on users with average eyesight working in typical ambient lighting conditions.
Users with below-average vision may experience problems at the maximum quoted ranges or under bright lighting.
4790N/6.050.G.S time-zone clock with green digits and lower white printed locations
4791N/6.05.Y.S time zone clock with yellow/amber digits and white printed locations at top
4790NIL30/6.05.B.S world time zone clock with blue time digits and blue illuminated location characters below
4791NIL30N/6.05.RG.S time zone clock with green digits, red five second markers and illuminated location characters at top
4790NIL50/3.05.R.S time zone clock with red time digits, red analogue seconds markers and 50mm (2″) high red illuminated location names below
Viewing Distances
20m – (60ft)
Please note that we base our suggested maximum viewing distances on users with average eyesight working in typical ambient lighting conditions.
Users with below-average vision may experience problems at the maximum quoted ranges or under bright lighting.
Please also be aware that blue illuminated characters can appear slightly out of focus to some people due to variations in the response of the human eye to blue light.
Clocks with blue digits typically have a shorter maximum viewing distance for many people than red, green or yellow/amber characters.

4740N/5.05.B.S time zone wall clock with blue digits and upper white printed location

4741N/5.05.G.S time zone clock with green digits and lower white printed location

4741N/5.05.G.S time zone clock with green digits and lower white printed location

4741NIL30/5.05.R.S time zone clock with red time digits and 30mm (1.2″) red illuminated location characters below

4740NIL50/3.05.Y.S time zone clock with yellow/amber time digits and 50mm (2″) yellow/amber illuminated location names
Also available as 4741NIL50/x.05 with time display on top
Viewing Distances
20m – (60ft)
Please note that we base our suggested maximum viewing distances on users with average eyesight working in typical ambient lighting conditions.
Users with below-average vision may experience problems at the maximum quoted ranges or under bright lighting.
Please also be aware that blue illuminated characters can appear slightly out of focus to some people due to variations in the response of the human eye to blue light.
Clocks with blue digits typically have a shorter maximum viewing distance for many people than red, green or yellow/amber characters.
4700N/5.05.G.S with white printed locations – left
4700NIL30/5.05.R.S with illuminated locations – right
4720N/4.05.B.S with white printed locations – left
4720NIL50/5.05.R.S with illuminated locations – right
Viewing Distances
20m – (60ft)
Please note that we base our suggested maximum viewing distances on users with average eyesight working in typical ambient lighting conditions.
Users with below-average vision may experience problems at the maximum quoted ranges or under bright lighting.
Please also be aware that blue illuminated characters can appear slightly out of focus to some people due to variations in the response of the human eye to blue light.
Clocks with blue digits typically have a shorter maximum viewing distance for many people than red, green or yellow/amber characters.
4900x.05.G.S, 4900x.02.G.S & 4900x.02.R.S Studio clocks showing the three analogue seconds indication modes
4900x.05.B, 4900.05.GR, 4900.05.R and 4900.05.Y studio clocks with blue digits, green digits with red 5 second markers, red digits and yellow/amber 50/30mm (2″/1.2″) high digits.
The 4900x.020 model with 20mm (0.8″) digits is only available with green or red digits and same colour markers.
Viewing Distances
4900x.05 – 15m (45ft), 4900x.020 – 7m (20ft)
Please note that we base our suggested maximum viewing distances on users with average eyesight working in typical ambient lighting conditions.
Users with below-average vision may experience problems at the maximum quoted ranges or under bright lighting.
Please also be aware that blue illuminated characters can appear slightly out of focus to some people due to variations in the response of the human eye to blue light.
Clocks with blue digits typically have a shorter maximum viewing distance for many people than red, green or yellow/amber characters.
4010x.100.G.S hours, minutes & seconds led digital wall clock with green digits
4200x.100.B.S, 4200x.100.G.S & 42100x.100.R.S hours and minutes LED digital wall clocks with blue, red or yellow/amber digit options
Viewing Distances
50m (150ft)
Please note that we base our suggested maximum viewing distances on users with average eyesight working in typical ambient lighting conditions.
Users with below-average vision may experience problems at the maximum quoted ranges or under bright lighting.
Please also be aware that blue illuminated characters can appear slightly out of focus to some people due to variations in the response of the human eye to blue light.
Clocks with blue digits typically have a shorter maximum viewing distance for many people than red, green or yellow/amber characters.
4580.057.Y countdown calendar clock
25m (75ft) more
57mm (2.3″) high digits
Also available as 4580.100.Y with 100mm (4″) digits
50m (150ft)
100mm (4″) digits
4581.057.B countdown calendar clock
25m (75ft)
digit options
57mm (2.3″) high digits
Also available as 4581.100 with 100mm (4″) digits
50m (150ft)
digit options
100mm (4″) high digits
4010x.220.UY.SE hours, minutes & seconds led digital wall clock with daylight visible ultra bright digits
4200x.220.UR.SE and 4200x.220.W.SE hours & minutes led digital wall clocks with daylight visible ultra bright digits
Viewing Distances
100m (300ft)
Please note that we base our suggested maximum viewing distances on users with average eyesight working in typical ambient lighting conditions.
Users with below-average vision may experience problems at the maximum quoted ranges or under bright lighting.
4010x.170.R.S hours, minutes & seconds LED digital wall clock
4200x.170.G.S, 4200x.170.W.S & 4200x.05.Y.S hours and minutes led digital wall clocks
Viewing Distances
80m (240ft)
Please note that we base our suggested maximum viewing distances on users with average eyesight working in typical ambient lighting conditions.
Users with below-average vision may experience problems at the maximum quoted ranges or under bright lighting.
4010x.170.UR.SE hours, minutes & seconds weatherproof digital wall clock with ultra bright digits
4200x.170.W.SE & 4200x.170.UY.SE hours and minutes weatherproof digital wall clocks with ultra bright digits
Viewing Distances
80m (240ft)
Please note that we base our suggested maximum viewing distances on users with average eyesight working in typical ambient lighting conditions.
Users with below-average vision may experience problems at the maximum quoted ranges or under bright lighting.
4010x.220.Y.S hours, minutes & seconds led digital wall clock
4200x.220.R.S, 4200x.220.W.S & 4200x.220.Y.S hours and minutes led digital wall clocks
Viewing Distances
100m (300ft)
Please note that we base our suggested maximum viewing distances on users with average eyesight working in typical ambient lighting conditions.
Users with below-average vision may experience problems at the maximum quoted ranges or under bright lighting.
4740N/4.100.G.S large time zone clock with green digits and upper white printed location names
4740N/4.100.R.S time zone clock with red digits and upper white printed location names
4741N/4.100.B.S time zone clock with blue time digits and white printed locations below above
4740NIL50/4.100.Y.S time zone clock with yellow/amber time digits and yellow/amber illuminated location characters above
4741NIL50/4.100.RG.S time zone clock with red time digits and green illuminated location names below
4740N/4.100.G.S large time zone clock with green digits and upper white printed location names
4740N/4.100.R.S time zone clock with red digits and upper white printed location names
4741N/4.100.B.S time zone clock with blue time digits and white printed locations below above
4740NIL50/4.100.Y.S time zone clock with yellow/amber time digits and yellow/amber illuminated location characters above
4741NIL50/4.100.RG.S time zone clock with red time digits and green illuminated location names below
Viewing Distances
50m – (150ft)
Please note that we base our suggested maximum viewing distances on users with average eyesight working in typical ambient lighting conditions.
Users with below-average vision may experience problems at the maximum quoted ranges or under bright lighting.
Please also be aware that blue illuminated characters can appear slightly out of focus to some people due to variations in the response of the human eye to blue light.
Clocks with blue digits typically have a shorter maximum viewing distance for many people than red, green or yellow/amber characters.


