Seiko Cal. 6663 - 378

The Seiko 6663-378 represents an important milestone in Seiko's 1991 lineup. It features a Silver dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-4e41d5366d08]

Also known as: Flighty

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1991

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