Seiko Cal. 5615 - 497

The Seiko 5615-497 represents an important milestone in Seiko's 1968 lineup. Powered by the 5615 caliber with 36j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-1f8b1fd73be1]

Also known as: Tuna, Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1968

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