Seiko Cal. 7136 - 939

The 7136-939 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7136 caliber with 21j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-b6bc2c78b55f]

Also known as: Samurai, Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1968

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