Seiko Cal. 4550 - 131

Seiko 4550-131

This Automatic model from 1983 features a 40mm Titanium case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-a0589729f3e3]

Also known as: Bullhead, Crown

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
40mm
Case Thickness
14.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Black
Jewels
30j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1983

Related Models

seikata-wm-a0589729f3e3