Seiko Cal. 6658 - 753

This Automatic model from 1977 features a 46mm Hardlex-Coated Steel case. Powered by the 6658 caliber with 35j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-166f837dd1fe]

Also known as: Tuna, Navigator

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1977

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