Seiko Cal. 7138 - 580

Seiko 7138-580

The 7138-580 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7138 caliber with 29j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-60933f1bc442]

Also known as: Sumo, Silverwave

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
43mm
Case Thickness
8.5mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
200m
Dial Color
White
Jewels
29j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1976

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seikata-wm-60933f1bc442