Seiko Cal. 3867 - 680

Seiko 3867-680

The Seiko 3867-680 represents an important milestone in Seiko's 1971 lineup. Powered by the 3867 caliber with 30j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-c348b17049aa]

Also known as: Helmet

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
14.8mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Silver
Jewels
30j
Frequency
36,000 bph
Power Reserve
51 hours
Year
1971

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