Seiko Cal. 4415 - 971

The Seiko 4415-971 represents an important milestone in Seiko's 1991 lineup. Powered by the 4415 caliber with 36j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-2dcf9d79b971]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1991

Related Models

• Seiko 6152-103
• Seiko 6213-498
• Seiko 7179-816
• Seiko 4447-541
• Seiko 7025-561
• Seiko 6231-853
• Seiko 6372-986
• Seiko 7195-533
• Seiko 6248-413
• Seiko 5665-155
• Seiko 6225-844
• Seiko 0761-500