Seiko Cal. 3816 - 381

This Automatic model from 1982 features a 45mm Hardlex-Coated Steel case. Powered by the 3816 caliber with 30j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-da84001e07ef]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1982

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