Seiko Cal. 6640 - 248

This Spring Drive model from 1999 features a 44mm Stainless Steel case. It features a White dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-bf22b604715a]

Also known as: Shogun, Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

White

Jewels

32j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1999

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