Seiko Cal. 6613 - 438

The Seiko 6613-438 represents an important milestone in Seiko's 1970 lineup. It features a Black dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-0def79df0492]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1970

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