Seiko Cal. 4451 - 637

Seiko 4451-637

This Spring Drive model from 1978 features a 38mm Gold-Plated case. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-543afa47e7d8]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
38mm
Case Thickness
9.5mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
130m
Dial Color
Black
Jewels
17j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1978

Related Models

seikata-wm-543afa47e7d8