Seiko Cal. 3856 - 121

Seiko 3856-121

The Seiko 3856-121 represents an important milestone in Seiko's 1998 lineup. Powered by the 3856 caliber with 35j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-5d2eac4a8130]

Also known as: Helmet, Baby Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
12.6mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
30m
Dial Color
Navy
Jewels
35j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1998

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