Seiko Cal. 3817 - 750

The 3817-750 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3817 caliber with 24j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-445ab542a20c]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1978

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