Seiko Cal. 7181 - 769

This Spring Drive model from 1971 features a 40mm Two-Tone case. It features a Burgundy dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-6be5e3abff68]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1971

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