Seiko Cal. 4456 - 356

The 4456-356 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4456 caliber with 28j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-a25c640af6e5]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1968

Related Models

• Seiko 4531-470
• Seiko 0752-543
• Seiko 4523-392
• Seiko 3854-363
• Seiko 4579-613
• Seiko 7038-127
• Seiko 0729-923
• Seiko 6691-722
• Seiko 5692-642
• Seiko 4473-719
• Seiko 5685-585
• Seiko 5278-418