Seiko Cal. 6643 - 726

Seiko 6643-726

This Spring Drive model from 1994 features a 37mm Hardlex-Coated Steel case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-a676dab2c076]

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
11.5mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Cream
Jewels
23j
Frequency
36,000 bph
Power Reserve
60 hours
Year
1994

Related Models

seikata-wm-a676dab2c076