Seiko Cal. 5691 - 495

The Seiko 5691-495 represents an important milestone in Seiko's 1980 lineup. Powered by the 5691 caliber with 31j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-0e3e0b514241]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1980

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