Seiko Cal. 6643 - 502

This Automatic model from 1965 features a 37mm Stainless Steel case. It features a White dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-d0e827a9bcbd]

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1965

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