Seiko Cal. 6321 - 344

The Seiko 6321-344 represents an important milestone in Seiko's 1969 lineup. Powered by the 6321 caliber with 28j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-d299b90f3ad0]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1969

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