Seiko Cal. 6681 - 390

The Seiko 6681-390 represents an important milestone in Seiko's 1965 lineup. It features a Silver dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-c60ce17c42f3]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1965

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