Seiko Cal. 6621 - 635

This Spring Drive model from 1967 features a 40mm Titanium case. It features a Black dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-2220677e4bfe]

Also known as: Rally, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1967

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