Seiko Cal. 6687 - 619

Seiko 6687-619

The 6687-619 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6687 caliber with 28j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-b44b03c14715]

Also known as: Monster, Helmet

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
13.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Green
Jewels
28j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1989

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seikata-wm-b44b03c14715