Seiko Cal. 4550 - 997

Seiko 4550-997

This Hand-Winding model from 1999 features a 42mm Hardlex-Coated Steel case. Powered by the 4550 caliber with 20j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-be9fac17d8ff]

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
11.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
200m
Dial Color
Silver
Jewels
20j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1999

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