Seiko Cal. 7139 - 440

The 7139-440 is a sought-after Hand-Winding piece from Seiko's golden era. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-62fe241e1593]

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1991

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