Seiko Cal. 4550 - 912

Seiko 4550-912

This Spring Drive model from 1985 features a 41mm Two-Tone case. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-c47755b45148]

Also known as: Monster

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
41mm
Case Thickness
14.3mm
Lug Width
19mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Green
Jewels
24j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1985

Related Models

seikata-wm-c47755b45148