Seiko Cal. 4427 - 637

Seiko 4427-637

This Spring Drive model from 1987 features a 44mm Titanium case. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-708e689fb76d]

Also known as: Goldfeather

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
44mm
Case Thickness
15.7mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Green
Jewels
30j
Frequency
28,800 bph
Power Reserve
58 hours
Year
1987

Related Models

seikata-wm-708e689fb76d