Seiko Cal. 4498 - 639

Seiko 4498-639

This Hand-Winding model from 1966 features a 45mm Stainless Steel case. Powered by the 4498 caliber with 35j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-89b9e378ee35]

Also known as: Monster, Arnie

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
10.3mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
150m
Dial Color
Navy
Jewels
35j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1966

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seikata-wm-89b9e378ee35