Seiko Cal. 3851 - 318

Seiko 3851-318

This Spring Drive model from 1999 features a 34mm PVD Black case. Powered by the 3851 caliber with 22j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-156e2b24b6fa]

Also known as: Monster, UFO

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
34mm
Case Thickness
11.6mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
Green
Jewels
22j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1999

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