Seiko Cal. 6685 - 538

The 6685-538 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6685 caliber with 23j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-a5679848a221]

Also known as: Monster, Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Champagne

Jewels

23j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1992

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