Seiko Cal. 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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