Seiko Cal. 5657 - 687

This Spring Drive model from 1973 features a 36mm Stainless Steel case. It features a White dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-a067adab8cf5]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1973

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