Seiko Cal. 4431 - 270

The 4431-270 is a sought-after Solar piece from Seiko's golden era. Powered by the 4431 caliber with 33j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-13c999ec34de]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1976

Related Models

• Seiko 5620-691
• Seiko 6237-882
• Seiko 4557-866
• Seiko 6658-252
• Seiko 6363-404
• Seiko 3872-855
• Seiko 4557-708
• Seiko 0785-561
• Seiko 5282-738
• Seiko 4427-641
• Seiko 5670-463
• Seiko 3866-307