Seiko Cal. 3889 - 643

This Spring Drive model from 1991 features a 42mm Titanium case. With its 20mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-dafc0914164c]

Also known as: UFO, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Silver

Jewels

19j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1991

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