Seiko Cal. 6638 - 251

The Seiko 6638-251 represents an important milestone in Seiko's 1968 lineup. It features a White dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-4686664c0690]

Also known as: Flighty

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1968

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