Seiko Cal. 4527 - 746

The 4527-746 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4527 caliber with 30j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-396dcb1f9ea3]

Also known as: Sumo, Pogue

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1975

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