Seiko Cal. 0731 - 221

The 0731-221 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Champagne dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-a4d382936d71]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Champagne

Jewels

32j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1997

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