Seiko Cal. 6631 - 720

This Quartz model from 1973 features a 34mm Two-Tone case. It features a White dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-475b67531bb8]

Also known as: Panda

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1973

Related Models

• Seiko 7077-250
• Seiko 4558-615
• Seiko 5229-830
• Seiko 4594-166
• Seiko 4469-469
• Seiko 5623-407
• Seiko 4469-487
• Seiko 3866-425
• Seiko 3885-284
• Seiko 5662-946
• Seiko 7186-434
• Seiko 5651-512