Seiko Cal. 3828 - 916

This Quartz model from 1967 features a 37mm Hardlex-Coated Steel case. Powered by the 3828 caliber with 18j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-075adb73be53]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

18j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1967

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