Seiko Cal. 6684 - 984

The Seiko 6684-984 represents an important milestone in Seiko's 1987 lineup. It features a White dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-a489b01c51ef]

Also known as: Sumo, Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

38mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1987

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