Seiko Cal. 6643 - 458

This Quartz model from 1975 features a 44mm Titanium case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-99aea856b47b]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1975

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