Seiko Cal. 6620 - 378

The Seiko 6620-378 represents an important milestone in Seiko's 1989 lineup. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-1fe10bf0b459]

Also known as: Sea Horse, Crown

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1989

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