Seiko Cal. 4420 - 554

Seiko 4420-554

The 4420-554 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-5aeceeeaac0b]

Also known as: Monster, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
8.6mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Burgundy
Jewels
30j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1995

Related Models

seikata-wm-5aeceeeaac0b