Seiko Cal. 6636 - 457

This Hand-Winding model from 1969 features a 34mm Titanium case. Powered by the 6636 caliber with 35j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-985cf446ccb0]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

35j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1969

Related Models

• Seiko 4523-719
• Seiko 7170-503
• Seiko 6168-181
• Seiko 4525-541
• Seiko 4442-462
• Seiko 6127-174
• Seiko 3848-999
• Seiko 4547-409
• Seiko 6652-485
• Seiko 4496-880
• Seiko 4558-111
• Seiko 5279-375