Seiko Cal. 3821 - 131

Seiko 3821-131

This Kinetic model from 1971 features a 45mm Two-Tone case. Powered by the 3821 caliber with 18j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-7c3ae6035c24]

Also known as: Baby Tuna, Arnie

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
45mm
Case Thickness
10.3mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
White
Jewels
18j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1971

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