Seiko Cal. 6661 - 388

Seiko 6661-388

The 6661-388 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6661 caliber with 24j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-40e10fb216d7]

Also known as: Panda, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
8.1mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Navy
Jewels
24j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1978

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