Seiko Cal. 6642 - 847

This Spring Drive model from 1991 features a 42mm Hardlex-Coated Steel case. With its 20mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-eaea3d26f07a]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1991

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