Seiko Cal. 6187 - 603

Released in 1969, the Cal. 6187 with design code 603 was part of Seiko's domestic market collection. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-a1eeb162fe1a]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1969

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