Seiko Cal. 5661 - 737

Seiko 5661-737

This Automatic model from 1970 features a 36mm Hardlex-Coated Steel case. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-b65c789f7e83]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
13.9mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Navy
Jewels
23j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1970

Related Models

seikata-wm-b65c789f7e83