Seiko Cal. 5656 - 741

The Seiko 5656-741 represents an important milestone in Seiko's 1973 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-4db61a511086]

Also known as: Tuna, Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Burgundy

Jewels

22j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1973

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