Seiko Cal. 6658 - 257

The Seiko 6658-257 represents an important milestone in Seiko's 1981 lineup. Powered by the 6658 caliber with 30j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-c3acae861df8]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1981

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