Seiko Cal. 3818 - 917

Seiko 3818-917

The 3818-917 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3818 caliber with 20j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-84fc94a3e17c]

Also known as: Samurai, Emperor

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
10.9mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Navy
Jewels
20j
Frequency
36,000 bph
Power Reserve
69 hours
Year
1969

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