Seiko Cal. 6646 - 145

The 6646-145 is a sought-after Solar piece from Seiko's golden era. Powered by the 6646 caliber with 29j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-1d02664092af]

Also known as: Sumo, Bullhead

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1970

Related Models

• Seiko 0788-906
• Seiko 6239-357
• Seiko 4569-259
• Seiko 6334-289
• Seiko 6655-787
• Seiko 0754-833
• Seiko 7168-526
• Seiko 0798-685
• Seiko 3837-323
• Seiko 7147-231
• Seiko 5273-463
• Seiko 0771-749