Seiko Cal. 6652 - 857

Released in 1986, the Cal. 6652 with design code 857 was part of Seiko's domestic market collection. It features a Green dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-47a024663a6b]

Also known as: Helmet, World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1986

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