Seiko Cal. 6636 - 740

The Seiko 6636-740 represents an important milestone in Seiko's 1984 lineup. It features a Champagne dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-cd237f9be2f0]

Also known as: Crown, Flighty

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Champagne

Jewels

36j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1984

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