Seiko Cal. 6635 - 837

The Seiko 6635-837 represents an important milestone in Seiko's 1969 lineup. It features a White dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-8dee63bbe755]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1969

Related Models

• Seiko 7175-962
• Seiko 7072-427
• Seiko 6271-939
• Seiko 5285-579
• Seiko 7074-692
• Seiko 5619-845
• Seiko 6158-525
• Seiko 4495-169
• Seiko 6240-727
• Seiko 6280-627
• Seiko 6389-305
• Seiko 5277-857