Seiko Cal. 6636 - 778

This Kinetic model from 1991 features a 44mm Titanium case. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-bffbea79efdb]

Also known as: Helmet, World Timer

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1991

Related Models

• Seiko 7013-226
• Seiko 4564-530
• Seiko 0755-664
• Seiko 5693-579
• Seiko 3826-596
• Seiko 6324-176
• Seiko 6347-932
• Seiko 6273-569
• Seiko 7117-645
• Seiko 5676-752
• Seiko 6138-690
• Seiko 0740-863