Seiko Cal. 4550 - 173

Seiko 4550-173

This Hand-Winding model from 1986 features a 34mm Stainless Steel case. Powered by the 4550 caliber with 23j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-b26c955b326e]

Also known as: World Timer

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
13.8mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Silver
Jewels
23j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1986

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