Seiko Cal. 4490 - 450

Seiko 4490-450

This Hand-Winding model from 1971 features a 45mm PVD Black case. Powered by the 4490 caliber with 31j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-826d0f48a090]

Also known as: Turtle, Crown

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
45mm
Case Thickness
8.9mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
31j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1971

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seikata-wm-826d0f48a090