Seiko Cal. 3843 - 575

The 3843-575 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3843 caliber with 28j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-cda6f04ea580]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1971

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