Seiko Cal. 4437 - 409

Seiko 4437-409

This Hand-Winding model from 1966 features a 40mm PVD Black case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-859f48b986ed]

Also known as: Monster

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
40mm
Case Thickness
10.2mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Silver
Jewels
24j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1966

Related Models

seikata-wm-859f48b986ed