Seiko Cal. 7139 - 712

The 7139-712 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7139 caliber with 29j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-fec61f2de46f]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1974

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