Seiko Cal. 3811 - 322

Seiko 3811-322

The Seiko 3811-322 represents an important milestone in Seiko's 1967 lineup. Powered by the 3811 caliber with 31j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-565e1efad552]

Also known as: Baby Tuna, Arnie

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
15.5mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
40m
Dial Color
Green
Jewels
31j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1967

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