Seiko Cal. 7139 - 350

The Seiko 7139-350 represents an important milestone in Seiko's 1993 lineup. Powered by the 7139 caliber with 27j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-071e2d93b9e9]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

27j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1993

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