Seiko Cal. 7138 - 631

Seiko 7138-631

The 7138-631 is a sought-after Kinetic piece from Seiko's golden era. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-77e8de060b27]

Also known as: Monster, Rally

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
13.3mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
130m
Dial Color
Silver
Jewels
34j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1969

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seikata-wm-77e8de060b27