Seiko Cal. 6680 - 370

The 6680-370 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-c307c163550a]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1988

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