Seiko Cal. 6641 - 194

The Seiko 6641-194 represents an important milestone in Seiko's 1987 lineup. It features a Navy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-1df06e34a663]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1987

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