Seiko Cal. 6231 - 488

The 6231-488 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-bd7cff06f1a5]

Also known as: Tuna, Silverwave

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1998

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