Seiko Cal. 5691 - 375

The Seiko 5691-375 represents an important milestone in Seiko's 1987 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-1e4cb30f7964]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1987

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