Seiko Cal. 7133 - 277

This Hand-Winding model from 1977 features a 42mm Titanium case. It features a Silver dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-2330f2e305c2]

Also known as: Tuna, Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1977

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