Seiko Cal. 6691 - 901

The Seiko 6691-901 represents an important milestone in Seiko's 1974 lineup. It features a Black dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-c73d62185f52]

Also known as: Panda, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1974

Related Models

• Seiko 7166-585
• Seiko 5624-153
• Seiko 6314-998
• Seiko 3814-560
• Seiko 7072-739
• Seiko 7187-319
• Seiko 6172-811
• Seiko 6232-204
• Seiko 4449-195
• Seiko 3889-188
• Seiko 4520-878
• Seiko 3813-558