Seiko Cal. 3865 - 743

Seiko 3865-743

The 3865-743 is a sought-after Hand-Winding piece from Seiko's golden era. With its 20mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-c0626813d467]

Also known as: Sumo

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
44mm
Case Thickness
12.3mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Black
Jewels
29j
Frequency
36,000 bph
Power Reserve
55 hours
Year
1972

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seikata-wm-c0626813d467