Seiko Cal. 0745 - 742

The 0745-742 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0745 caliber with 26j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-a003e28fac57]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Burgundy

Jewels

26j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1991

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