Seiko Cal. 6340 - 556

This Spring Drive model from 1982 features a 35mm Two-Tone case. It features a Green dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-85bf0c5e4e83]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1982

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