Seiko Cal. 6163 - 631

This Spring Drive model from 1988 features a 35mm Two-Tone case. Powered by the 6163 caliber with 30j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-0af7c70a81f7]

Also known as: Silverwave, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1988

Related Models

• Seiko 7099-932
• Seiko 7191-785
• Seiko 7031-578
• Seiko 6358-893
• Seiko 6270-610
• Seiko 3851-497
• Seiko 6646-958
• Seiko 4547-256
• Seiko 6395-112
• Seiko 6652-719
• Seiko 6290-327
• Seiko 6340-608