Seiko Cal. 6620 - 284

The Seiko 6620-284 represents an important milestone in Seiko's 1969 lineup. Powered by the 6620 caliber with 27j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-bf103a7df34d]

Also known as: Helmet, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1969

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