Seiko Cal. 4430 - 421

Seiko 4430-421

The 4430-421 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-2d53b456263c]

Also known as: Sportsmatic

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
15.2mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
190m
Dial Color
Navy
Jewels
23j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1985

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