Seiko Cal. 6378 - 410

The Seiko 6378-410 represents an important milestone in Seiko's 1997 lineup. Powered by the 6378 caliber with 23j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-03b3828c799a]

Also known as: Sumo, Shogun

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1997

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