Seiko Cal. 7139 - 837

The 7139-837 is a sought-after Hand-Winding piece from Seiko's golden era. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-1c5f8bf8b78d]

Also known as: UFO, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1987

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