Seiko Cal. 5621 - 392

This Hand-Winding model from 1971 features a 46mm Titanium case. Powered by the 5621 caliber with 21j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-98ca8fb0513a]

Also known as: UFO, Navigator

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1971

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