Seiko Cal. 4490 - 846

Seiko 4490-846

The 4490-846 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4490 caliber with 26j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-31bf32d4caa5]

Also known as: Sumo, Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
15.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
150m
Dial Color
Silver
Jewels
26j
Frequency
36,000 bph
Power Reserve
53 hours
Year
1972

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