Seiko Cal. 6140 - 228

The 6140-228 is a sought-after Quartz piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-1a0ceaa90a34]

Also known as: Tuna, Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1966

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