Seiko Cal. 6391 - 276

Released in 1973, the Cal. 6391 with design code 276 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-152618c0491c]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1973

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