Seiko Cal. 6340 - 770

This Spring Drive model from 1987 features a 40mm Two-Tone case. It features a Cream dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-17fd6410fc60]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

29j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1987

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