Seiko Cal. 4560 - 937

This Spring Drive model from 1976 features a 45mm Gold-Plated case. Powered by the 4560 caliber with 23j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-d44fbf0ca587]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1976

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