Seiko Cal. 5631 - 236

The Seiko 5631-236 represents an important milestone in Seiko's 1998 lineup. With its 18mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-c1585b89ad79]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1998

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