Seiko Cal. 7138 - 539

Seiko 7138-539

The Seiko 7138-539 represents an important milestone in Seiko's 1974 lineup. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-eea5d405bed5]

Also known as: Sea Horse, Arnie

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
44mm
Case Thickness
13.8mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
190m
Dial Color
Green
Jewels
24j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1974

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