Seiko Cal. 6371 - 399

The 6371-399 is a sought-after Quartz piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-1280d07b1642]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1979

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