Seiko Cal. 6645 - 346

The 6645-346 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6645 caliber with 33j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-09c3c23bdc14]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Cream

Jewels

33j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1996

Related Models

• Seiko 5223-452
• Seiko 4579-947
• Seiko 4453-350
• Seiko 5667-410
• Seiko 7029-186
• Seiko 3810-373
• Seiko 7128-578
• Seiko 3826-627
• Seiko 7118-864
• Seiko 6317-900
• Seiko 6258-676
• Seiko 6637-906