Seiko Cal. 3820 - 778

The Seiko 3820-778 represents an important milestone in Seiko's 1993 lineup. Powered by the 3820 caliber with 25j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-2fb931123beb]

Also known as: Sumo, Rally

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1993

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