Seiko Cal. 5656 - 100

This Spring Drive model from 1978 features a 45mm Titanium case. It features a Green dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-ab6a566ca6e1]

Also known as: Goldfeather, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1978

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