Seiko Cal. 4490 - 351

Seiko 4490-351

This Solar model from 1978 features a 42mm Hardlex-Coated Steel case. With its 21mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-3c6518a3f836]

Also known as: Helmet

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
10.3mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
180m
Dial Color
Navy
Jewels
35j
Frequency
21,600 bph
Power Reserve
58 hours
Year
1978

Related Models

seikata-wm-3c6518a3f836