Seiko Cal. 6639 - 319

The 6639-319 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-393a84a7fcb7]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1997

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