Seiko Cal. 5690 - 738

The Seiko 5690-738 represents an important milestone in Seiko's 1970 lineup. Powered by the 5690 caliber with 26j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-3daa78a0f339]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1970

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