Seiko Cal. 6687 - 331

Seiko 6687-331

The Seiko 6687-331 represents an important milestone in Seiko's 1994 lineup. Powered by the 6687 caliber with 32j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-08437e008542]

Also known as: Rally, Silverwave

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
10.8mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
60m
Dial Color
White
Jewels
32j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1994

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seikata-wm-08437e008542