Seiko Cal. 6638 - 252

The Seiko 6638-252 represents an important milestone in Seiko's 1986 lineup. It features a Green dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-232cdd68d8e5]

Also known as: Bullhead, Flighty

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1986

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