Seiko Cal. 4490 - 987

Seiko 4490-987

The 4490-987 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4490 caliber with 28j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-ee4022fa4be1]

Also known as: Baby Tuna

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
15.5mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
110m
Dial Color
White
Jewels
28j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1987

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