Seiko Cal. 6655 - 170

The 6655-170 is a sought-after Automatic piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-156efc408523]

Also known as: Sumo, Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1965

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