Seiko Cal. 7138 - 454

Seiko 7138-454

This Hand-Winding model from 1977 features a 38mm Gold-Plated case. Powered by the 7138 caliber with 20j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-16cef313475c]

Also known as: UFO, Crown

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
38mm
Case Thickness
11.2mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Navy
Jewels
20j
Frequency
36,000 bph
Power Reserve
42 hours
Year
1977

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