Seiko Cal. 0748 - 509

The 0748-509 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0748 caliber with 17j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-7a721ff20dc6]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1992

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