Seiko Cal. 4437 - 573

Seiko 4437-573

The 4437-573 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4437 caliber with 23j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-28c00f10b7f3]

Also known as: Bullhead, Silverwave

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
39mm
Case Thickness
8.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Navy
Jewels
23j
Frequency
28,800 bph
Power Reserve
52 hours
Year
1990

Related Models

seikata-wm-28c00f10b7f3