Seiko Cal. 4421 - 701

This Hand-Winding model from 1977 features a 36mm Two-Tone case. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-5a748f0c8842]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1977

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