Seiko Cal. 4416 - 648

Seiko 4416-648

The 4416-648 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4416 caliber with 26j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-6dfa059fc9fb]

Also known as: Samurai, Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
35mm
Case Thickness
9.9mm
Lug Width
20mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
200m
Dial Color
Champagne
Jewels
26j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1977

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