Seiko Cal. 3828 - 821

The 3828-821 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3828 caliber with 33j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-5ed36d8051fa]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1969

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