Seiko Cal. 6641 - 425

This Hand-Winding model from 1970 features a 44mm Stainless Steel case. It features a Navy dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-414be08954d8]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1970

Related Models

• Seiko 3833-415
• Seiko 6274-309
• Seiko 4565-558
• Seiko 3894-271
• Seiko 7025-425
• Seiko 6122-383
• Seiko 4549-353
• Seiko 5677-623
• Seiko 4429-929
• Seiko 7099-362
• Seiko 5254-110
• Seiko 5688-881