Seiko Cal. 5651 - 758

The 5651-758 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5651 caliber with 31j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-6736f61f78e7]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1979

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