Seiko Cal. 6639 - 144

This Automatic model from 1973 features a 39mm Stainless Steel case. Powered by the 6639 caliber with 21j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-0e5c18460f7b]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1973

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