Seiko Cal. 6339 - 138

Seiko 6339-138

This Spring Drive model from 1976 features a 42mm Stainless Steel case. Powered by the 6339 caliber with 29j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-e605972abb20]

Also known as: Monster

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
10.0mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Silver
Jewels
29j
Frequency
28,800 bph
Power Reserve
45 hours
Year
1976

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