Seiko Cal. 3854 - 647

Seiko 3854-647

The 3854-647 is a sought-after Solar piece from Seiko's golden era. With its 21mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-6f2b41131eec]

Also known as: Helmet

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
13.9mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Blue Sunburst
Jewels
23j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1999

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