Seiko Cal. 0728 - 134

Seiko 0728-134

The 0728-134 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0728 caliber with 34j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-aee4b5e2e6d6]

Also known as: Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
34mm
Case Thickness
9.9mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
Silver
Jewels
34j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1981

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