Seiko Cal. 3859 - 331

Seiko 3859-331

The Seiko 3859-331 represents an important milestone in Seiko's 1998 lineup. Powered by the 3859 caliber with 21j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-a9f19c4d06c8]

Also known as: Sportsmatic

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
39mm
Case Thickness
8.1mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Champagne
Jewels
21j
Frequency
36,000 bph
Power Reserve
42 hours
Year
1998

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