Seiko Cal. 7139 - 907

This Spring Drive model from 1984 features a 46mm Titanium case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-3b0b6c32d8e7]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1984

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