Seiko Cal. 6678 - 377

The Seiko 6678-377 represents an important milestone in Seiko's 1981 lineup. It features a Green dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-73e33849c17a]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1981

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