Seiko Cal. 3859 - 892

Seiko 3859-892

The Seiko 3859-892 represents an important milestone in Seiko's 1976 lineup. Powered by the 3859 caliber with 31j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-a880ff8dcd11]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
34mm
Case Thickness
14.4mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
White
Jewels
31j
Frequency
28,800 bph
Power Reserve
61 hours
Year
1976

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