Seiko Cal. 4437 - 266

This Spring Drive model from 1977 features a 40mm Titanium case. It features a Burgundy dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-65231b7a91bc]

Also known as: Crown, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1977

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