Seiko Cal. 6638 - 803

The 6638-803 is a sought-after Solar piece from Seiko's golden era. Powered by the 6638 caliber with 17j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-5f599258b296]

Also known as: Flighty

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1970

Related Models

• Seiko 6246-428
• Seiko 4585-188
• Seiko 4476-338
• Seiko 7046-271
• Seiko 4580-754
• Seiko 6276-111
• Seiko 5237-157
• Seiko 6682-577
• Seiko 6272-480
• Seiko 6238-888
• Seiko 5633-371
• Seiko 4541-233