Seiko Cal. 6350 - 740

The 6350-740 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6350 caliber with 21j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-b6ab5cf5e1d4]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1976

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