Seiko Cal. 4490 - 242

Seiko 4490-242

The 4490-242 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4490 caliber with 20j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-04b08ba7aba6]

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
14.4mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
Black
Jewels
20j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1990

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