Seiko Cal. 7154 - 345

The 7154-345 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7154 caliber with 20j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-7390b7b3c8a9]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1973

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