Seiko Cal. 4511 - 975

The 4511-975 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-6102ca17469c]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1978

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