Seiko Cal. 6378 - 491

This Automatic model from 1994 features a 40mm Titanium case. Powered by the 6378 caliber with 24j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-7404d2fbec79]

Also known as: Sumo, Navigator

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1994

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