Seiko Cal. 4431 - 348

Seiko 4431-348

This Quartz model from 1968 features a 37mm Stainless Steel case. With its 20mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-a7905ff3c464]

Also known as: Golden Tuna

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
13.8mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Green
Jewels
23j
Frequency
21,600 bph
Power Reserve
51 hours
Year
1968

Related Models

seikata-wm-a7905ff3c464