Seiko Cal. 0728 - 288

Seiko 0728-288

This Solar model from 1974 features a 40mm Titanium case. With its 18mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-c48ec8e0499a]

Also known as: Sumo, Helmet

Specifications

Movement
Solar
Case Material
Titanium
Case Width
40mm
Case Thickness
9.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Black
Jewels
23j
Frequency
28,800 bph
Power Reserve
58 hours
Year
1974

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seikata-wm-c48ec8e0499a