Seiko Cal. 4447 - 763

The 4447-763 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4447 caliber with 25j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-d296310a763c]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1967

Related Models

• Seiko 3828-344
• Seiko 4567-669
• Seiko 7094-306
• Seiko 6353-743
• Seiko 6120-521
• Seiko 6278-934
• Seiko 6641-890
• Seiko 3824-300
• Seiko 4419-539
• Seiko 6678-341
• Seiko 3833-458
• Seiko 0792-706