Seiko Cal. 6658 - 599

The Seiko 6658-599 represents an important milestone in Seiko's 1986 lineup. Powered by the 6658 caliber with 31j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-a11c72c2cf9f]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1986

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