Seiko Cal. 5657 - 788

This Solar model from 1973 features a 37mm Titanium case. Powered by the 5657 caliber with 17j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-5b182316c7b7]

Also known as: Monster, Crown

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1973

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