Seiko Cal. 4435 - 817

The 4435-817 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4435 caliber with 31j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-197ac05a426e]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1968

Related Models

• Seiko 5622-718
• Seiko 5281-461
• Seiko 6392-493
• Seiko 6660-681
• Seiko 4563-554
• Seiko 4454-746
• Seiko 6171-574
• Seiko 4457-467
• Seiko 6223-410
• Seiko 6644-824
• Seiko 6691-408
• Seiko 3878-282