Seiko Cal. 7136 - 744

The 7136-744 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7136 caliber with 23j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-24089980f9ef]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1967

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