Seiko Cal. 3828 - 523

This Spring Drive model from 1981 features a 34mm Two-Tone case. Powered by the 3828 caliber with 30j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-86af0f878e5c]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1981

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