Seiko Cal. 5639 - 998

The Seiko 5639-998 represents an important milestone in Seiko's 1996 lineup. With its 20mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-827c64c00f87]

Also known as: Bellmatic, World Timer

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Champagne

Jewels

23j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1996

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