Seiko Cal. 6657 - 308

This Automatic model from 1975 features a 41mm Titanium case. It features a Silver dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-ae98803fb0de]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1975

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