Seiko Cal. 6636 - 923

The 6636-923 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6636 caliber with 21j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-915550c12634]

Also known as: Sea Horse, Crown

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1991

Related Models

• Seiko 4590-180
• Seiko 5286-110
• Seiko 5216-123
• Seiko 4585-365
• Seiko 0788-278
• Seiko 7143-423
• Seiko 3822-510
• Seiko 5640-780
• Seiko 3897-314
• Seiko 0729-371
• Seiko 7146-644
• Seiko 0742-971