Seiko Cal. 6333 - 643

The 6333-643 is a sought-after Quartz piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-4f6f2326fa82]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1978

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