Seiko Cal. 5660 - 421

Seiko 5660-421

This Automatic model from 1998 features a 38mm Hardlex-Coated Steel case. With its 21mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-4aa5ecbf5ca6]

Also known as: Bullhead, Navigator

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
8.2mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Navy
Jewels
25j
Frequency
36,000 bph
Power Reserve
43 hours
Year
1998

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