Seiko Cal. 6657 - 575

The 6657-575 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-65a1649760d0]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Burgundy

Jewels

22j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1972

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