Seiko Cal. 5621 - 931

This Kinetic model from 1982 features a 39mm Titanium case. It features a Silver dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-1fd30321fd31]

Also known as: UFO, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

39mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1982

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