Seiko Cal. 6663 - 628

The Seiko 6663-628 represents an important milestone in Seiko's 1981 lineup. It features a White dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-89d7a5f08dc5]

Also known as: UFO, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1981

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