Seiko Cal. 6663 - 465

The Seiko 6663-465 represents an important milestone in Seiko's 1973 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-28d0001ee71f]

Also known as: Helmet, Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1973

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