Seiko Cal. 5660 - 864

Seiko 5660-864

This Hand-Winding model from 1994 features a 43mm Hardlex-Coated Steel case. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-274a8032d82c]

Also known as: Helmet, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
11.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
190m
Dial Color
White
Jewels
25j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1994

Related Models

seikata-wm-274a8032d82c