Seiko Cal. 6635 - 633

The 6635-633 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-bb83460566be]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1969

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