Wharton 4500 series calendar clocks with day and date

4751N/5.05.G.S World time zone clock with green digits and lower white printed locations

4750NIL30/5.05.RG.S World time zone clock with red time digits and green illuminated location characters above the time information

4751NIL30/5.05.Y.S World time zone clock with yellow/amber time digits and 30mm (1.2″) yellow/amber illuminated location characters below the time information

4750NIL50/3.05.B.S World ime zone clock with blue time digits and blue illuminated blue location names above the time information

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.

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.

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.