Seiko Cal. 6388 - 677

Released in 1982, the Cal. 6388 with design code 677 was part of Seiko's domestic market collection. It features a Green dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-8dc5cd200b52]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1982

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