Seiko Cal. 4423 - 730

Seiko 4423-730

This Hand-Winding model from 1987 features a 39mm Hardlex-Coated Steel case. Powered by the 4423 caliber with 17j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-87ed2a351dba]

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
11.5mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
Blue Sunburst
Jewels
17j
Frequency
28,800 bph
Power Reserve
65 hours
Year
1987

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seikata-wm-87ed2a351dba