Seiko Cal. 4555 - 687

The Seiko 4555-687 represents an important milestone in Seiko's 1991 lineup. With its 21mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-51a5891c43c8]

Also known as: Sea Horse, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1991

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