Seiko Cal. 5621 - 912

This Spring Drive model from 1975 features a 45mm Hardlex-Coated Steel case. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-9ca74104078a]

Also known as: UFO, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1975

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