Seiko Cal. 6684 - 641

The Seiko 6684-641 represents an important milestone in Seiko's 1974 lineup. It features a Silver dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-4efbfe8141f8]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1974

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