Seiko Cal. 3858 - 204

Seiko 3858-204

The 3858-204 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3858 caliber with 28j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-1521f9e58e47]

Also known as: UFO

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
42mm
Case Thickness
11.9mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
Black
Jewels
28j
Frequency
36,000 bph
Power Reserve
45 hours
Year
1977

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