Seiko Cal. 6661 - 391

Seiko 6661-391

The 6661-391 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-0b950f01f5ef]

Also known as: Turtle, Shogun

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
13.2mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Navy
Jewels
18j
Frequency
36,000 bph
Power Reserve
44 hours
Year
1978

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