Seiko Cal. 6343 - 571

The 6343-571 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6343 caliber with 27j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-5865eb98acf9]

Also known as: Tuna, Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1969

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