Seiko Cal. 7181 - 305

This Spring Drive model from 1971 features a 45mm Hardlex-Coated Steel case. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-6495e73bbce6]

Also known as: UFO, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1971

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