Seiko Cal. 7139 - 399

The Seiko 7139-399 represents an important milestone in Seiko's 1990 lineup. Powered by the 7139 caliber with 17j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-3f1c513689d1]

Also known as: Tuna, Navigator

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1990

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