Seiko Cal. 6627 - 473

This Spring Drive model from 1978 features a 40mm Titanium case. It features a Black dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-aaa77dd87b37]

Also known as: Tuna, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1978

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