Seiko Cal. 0742 - 506

The 0742-506 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0742 caliber with 20j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-0261dba522a0]

Also known as: Turtle, Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1979

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