Seiko Cal. 6641 - 497

The Seiko 6641-497 represents an important milestone in Seiko's 1987 lineup. It features a Navy dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-3b99cab69b30]

Also known as: Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1987

Related Models

• Seiko 0740-192
• Seiko 6610-357
• Seiko 3894-714
• Seiko 6646-135
• Seiko 5691-129
• Seiko 7132-712
• Seiko 5697-943
• Seiko 0791-175
• Seiko 6683-801
• Seiko 7035-952
• Seiko 0774-402
• Seiko 6171-541