Seiko Cal. 4438 - 811

Seiko 4438-811

This Spring Drive model from 1991 features a 45mm Hardlex-Coated Steel case. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-7e369f8303a3]

Also known as: World Timer, Navigator

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
10.3mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Navy
Jewels
36j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1991

Related Models

seikata-wm-7e369f8303a3