Seiko Cal. 6693 - 638

Seiko 6693-638

The 6693-638 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6693 caliber with 24j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-64f61841637d]

Also known as: Bullhead, Rally

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
43mm
Case Thickness
8.7mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Green
Jewels
24j
Frequency
21,600 bph
Power Reserve
65 hours
Year
1977

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seikata-wm-64f61841637d