Seiko Cal. 6390 - 660

The 6390-660 is a sought-after Kinetic piece from Seiko's golden era. It features a Burgundy dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-3caf8aee1216]

Also known as: Sumo, Bellmatic

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1968

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