Seiko Cal. 3890 - 646

Seiko 3890-646

This Spring Drive model from 1987 features a 45mm Titanium case. With its 18mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-13446190992a]

Also known as: Navigator

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
45mm
Case Thickness
14.3mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
180m
Dial Color
Silver
Jewels
19j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1987

Related Models

seikata-wm-13446190992a