Seiko Cal. 6331 - 247

The 6331-247 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-7b2b1255c2c5]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1991

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