Seiko Cal. 7156 - 687

The Seiko 7156-687 represents an important milestone in Seiko's 1997 lineup. It features a Green dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-fa62825da28a]

Also known as: Tuna, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Green

Jewels

34j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1997

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