Seiko Cal. 6635 - 534

The 6635-534 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-acb956d8f254]

Also known as: Bullhead, Arnie

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1976

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