Seiko Cal. 5644 - 838

Seiko 5644-838

This Automatic model from 1980 features a 37mm Gold-Plated case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-52c7d42cc490]

Also known as: Helmet

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
11.7mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Silver
Jewels
36j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1980

Related Models

seikata-wm-52c7d42cc490