Seiko Cal. 6691 - 164

Released in 1973, the Cal. 6691 with design code 164 was part of Seiko's domestic market collection. It features a Black dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-da2ce748e3b8]

Also known as: Rally, Sea Horse

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1973

Related Models

• Seiko 6368-783
• Seiko 6261-735
• Seiko 6218-556
• Seiko 4422-370
• Seiko 6264-644
• Seiko 7187-930
• Seiko 6353-102
• Seiko 4587-488
• Seiko 4526-145
• Seiko 6273-501
• Seiko 6685-678
• Seiko 0731-457