Seiko Cal. 4415 - 680

Seiko 4415-680

The 4415-680 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4415 caliber with 26j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-3802d85ceee9]

Also known as: Sumo, Helmet

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
40mm
Case Thickness
15.6mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Navy
Jewels
26j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1981

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