Seiko Cal. 6687 - 508

This Hand-Winding model from 1978 features a 42mm PVD Black case. It features a Green dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-544ddcea9e1a]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1978

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