Seiko Cal. 0782 - 437

The 0782-437 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0782 caliber with 33j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-c15a78b0f78b]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1981

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