Seiko Cal. 4456 - 644

Released in 1972, the Cal. 4456 with design code 644 was part of Seiko's domestic market collection. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-eef78dd27536]

Also known as: Panda, Silverwave

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1972

Related Models

• Seiko 5614-493
• Seiko 5232-915
• Seiko 4527-113
• Seiko 6178-806
• Seiko 7050-739
• Seiko 6630-460
• Seiko 7143-523
• Seiko 6259-779
• Seiko 6239-703
• Seiko 7174-301
• Seiko 7044-276
• Seiko 6382-520