Seiko Cal. 4510 - 509

This Spring Drive model from 1981 features a 37mm Two-Tone case. With its 19mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-eb2a1cf324c3]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1981

Related Models

• Seiko 3829-324
• Seiko 7140-725
• Seiko 6666-163
• Seiko 4422-891
• Seiko 3850-888
• Seiko 0782-839
• Seiko 6148-661
• Seiko 5650-551
• Seiko 4444-385
• Seiko 6322-355
• Seiko 5247-954
• Seiko 6254-429