Seiko Cal. 7139 - 537

This Hand-Winding model from 1979 features a 41mm Two-Tone case. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-69240dd61299]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1979

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