Seiko Cal. 6680 - 140

The 6680-140 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-b85a498b5f24]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1979

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