Seiko Cal. 4431 - 113

The 4431-113 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4431 caliber with 20j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-68c43170b81c]

Also known as: Samurai

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1965

Related Models

• Seiko 3840-848
• Seiko 7147-695
• Seiko 0751-332
• Seiko 5616-288
• Seiko 5620-373
• Seiko 5671-697
• Seiko 7130-324
• Seiko 3835-232
• Seiko 7143-620
• Seiko 4487-839
• Seiko 7182-620
• Seiko 6123-662