Seiko Cal. 6343 - 604

The 6343-604 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-c1b09167cfd8]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1971

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