Seiko Cal. 4540 - 998

Seiko 4540-998

This Automatic model from 1992 features a 43mm Titanium case. With its 18mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-1c9cbf5c7066]

Also known as: Sumo, Crown

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
43mm
Case Thickness
12.1mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
Navy
Jewels
27j
Frequency
28,800 bph
Power Reserve
42 hours
Year
1992

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