Seiko Cal. 6339 - 136

The Seiko 6339-136 represents an important milestone in Seiko's 1974 lineup. Powered by the 6339 caliber with 25j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-ad56c3c443de]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1974

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