Seiko Cal. 5665 - 931

Seiko 5665-931

This Spring Drive model from 1974 features a 40mm PVD Black case. It features a Burgundy dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-9420b5abb717]

Also known as: Monster, Bellmatic

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
40mm
Case Thickness
15.4mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
190m
Dial Color
Burgundy
Jewels
28j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1974

Related Models

seikata-wm-9420b5abb717