Seiko Cal. 7139 - 387

The Seiko 7139-387 represents an important milestone in Seiko's 1985 lineup. Powered by the 7139 caliber with 17j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-327b50394728]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1985

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