Seiko Cal. 4438 - 739

Seiko 4438-739

This Spring Drive model from 1977 features a 38mm PVD Black case. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-909d4e09ad77]

Also known as: UFO, Navigator

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
38mm
Case Thickness
14.2mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Green
Jewels
35j
Frequency
21,600 bph
Power Reserve
39 hours
Year
1977

Related Models

seikata-wm-909d4e09ad77