Seiko Cal. 6156 - 784

This Quartz model from 1987 features a 40mm Titanium case. It features a Navy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-c066f5f961b5]

Also known as: Tuna, Arnie

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1987

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