Seiko Cal. 3820 - 298

Released in 1986, the Cal. 3820 with design code 298 was part of Seiko's domestic market collection. Powered by the 3820 caliber with 27j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-caa4cdead3d9]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1986

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