Seiko Cal. 3828 - 781

The 3828-781 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3828 caliber with 24j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-ee8b8d372c2c]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1970

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