Seiko Cal. 6642 - 364

The Seiko 6642-364 represents an important milestone in Seiko's 1983 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-fb1ecb118297]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1983

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