Seiko Cal. 5641 - 636

This Hand-Winding model from 1993 features a 40mm Titanium case. With its 19mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-7a7a29108e38]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1993

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