Seiko Cal. 6631 - 250

This Spring Drive model from 1997 features a 46mm PVD Black case. It features a Champagne dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-f318a4dbc1d8]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1997

Related Models

• Seiko 5620-318
• Seiko 6250-257
• Seiko 5280-332
• Seiko 5236-917
• Seiko 6685-237
• Seiko 7165-371
• Seiko 7071-899
• Seiko 6617-179
• Seiko 6354-461
• Seiko 0716-877
• Seiko 7037-534
• Seiko 0769-826