Seiko Cal. 6331 - 620

The 6331-620 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-6e09781c0823]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1991

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