Seiko Cal. 0771 - 939

The 0771-939 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0771 caliber with 23j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-694f3de061ab]

Also known as: Rally, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1968

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