Seiko Cal. 6639 - 992

Seiko 6639-992

This Automatic model from 1981 features a 41mm Titanium case. Powered by the 6639 caliber with 24j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-637c5db96b36]

Also known as: Samurai, Sportsmatic

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
41mm
Case Thickness
8.5mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
White
Jewels
24j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1981

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seikata-wm-637c5db96b36