Seiko Cal. 7140 - 987

This Hand-Winding model from 1971 features a 36mm Two-Tone case. It features a Green dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-57fd1f6c05b6]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1971

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