Seiko Cal. 3856 - 680

Seiko 3856-680

The 3856-680 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3856 caliber with 34j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-a5d9392067a5]

Also known as: Monster, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
37mm
Case Thickness
8.1mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Cream
Jewels
34j
Frequency
36,000 bph
Power Reserve
54 hours
Year
1974

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seikata-wm-a5d9392067a5