Seiko Cal. 4413 - 686

Seiko 4413-686

The 4413-686 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4413 caliber with 21j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-675b9a5b8d30]

Also known as: Bullhead, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
13.8mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
200m
Dial Color
Silver
Jewels
21j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1976

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seikata-wm-675b9a5b8d30