Seiko Cal. 7021 - 138

Seiko 7021-138

The 7021-138 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7021 caliber with 28j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-697c2aeb3120]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
40mm
Case Thickness
10.3mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
170m
Dial Color
Burgundy
Jewels
28j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1981

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seikata-wm-697c2aeb3120