Seiko Cal. 6677 - 391

The Seiko 6677-391 represents an important milestone in Seiko's 1980 lineup. It features a Navy dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-049051c5a84e]

Also known as: Panda

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1980

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