Seiko Cal. 6343 - 378

This Automatic model from 1972 features a 39mm Stainless Steel case. Powered by the 6343 caliber with 33j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-80419f7413c3]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1972

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