Seiko Cal. 5656 - 326

This Hand-Winding model from 1974 features a 42mm PVD Black case. It features a Navy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-9b82051ea650]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1974

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