Seiko Cal. 6636 - 539

The Seiko 6636-539 represents an important milestone in Seiko's 1986 lineup. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-cdfbbc7ac008]

Also known as: Rally, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1986

Related Models

• Seiko 4594-225
• Seiko 5680-165
• Seiko 6236-769
• Seiko 5277-355
• Seiko 5643-261
• Seiko 6313-835
• Seiko 6680-813
• Seiko 6178-349
• Seiko 3817-690
• Seiko 5662-574
• Seiko 4488-790
• Seiko 6694-217