Seiko Cal. 5261 - 997

This Hand-Winding model from 1978 features a 42mm Titanium case. With its 18mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-dc7d6d65a155]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1978

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