Seiko Cal. 4581 - 354

The 4581-354 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-7099effc8ed5]

Also known as: Sea Horse, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1977

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