Seiko Cal. 6636 - 538

The Seiko 6636-538 represents an important milestone in Seiko's 1966 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-a6c22b6e9145]

Also known as: Samurai

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1966

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