Seiko Cal. 6140 - 552

The 6140-552 is a sought-after Spring Drive piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-f5e2ec890b9b]

Also known as: Navigator, Flighty

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1987

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