Seiko Cal. 5631 - 948

The 5631-948 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Burgundy dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-0964cdb93ee4]

Also known as: Crown, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1999

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