Seiko Cal. 5610 - 399

Seiko 5610-399

This Hand-Winding model from 1966 features a 34mm Hardlex-Coated Steel case. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-17ff6b7a298a]

Also known as: Bullhead, Bellmatic

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
11.9mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
130m
Dial Color
White
Jewels
19j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1966

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