Seiko Cal. 6643 - 244

The Seiko 6643-244 represents an important milestone in Seiko's 1988 lineup. It features a White dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-917ba9d197e3]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

26j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1988

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