Seiko Cal. 7139 - 376

This Hand-Winding model from 1997 features a 44mm PVD Black case. Powered by the 7139 caliber with 30j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-34004916dcb5]

Also known as: Helmet, Navigator

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1997

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