Seiko Cal. 4457 - 836

This Spring Drive model from 1977 features a 41mm Stainless Steel case. Powered by the 4457 caliber with 24j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-88d4ed585c30]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Champagne

Jewels

24j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1977

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