Seiko Cal. 5241 - 637

This Spring Drive model from 1989 features a 41mm Two-Tone case. With its 21mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-66b27a157abc]

Also known as: Navigator, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1989

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