Seiko Cal. 6634 - 257

The Seiko 6634-257 represents an important milestone in Seiko's 1996 lineup. With its 21mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-9586467b945b]

Also known as: Goldfeather, World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1996

Related Models

• Seiko 0723-496
• Seiko 6624-188
• Seiko 7066-476
• Seiko 6267-514
• Seiko 3856-621
• Seiko 7192-203
• Seiko 6288-525
• Seiko 4460-516
• Seiko 7036-905
• Seiko 0775-451
• Seiko 4455-765
• Seiko 6260-267