Seiko Cal. 6351 - 187

Released in 1986, the Cal. 6351 with design code 187 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-1b4cda594bab]

Also known as: Tuna, World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1986

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