Seiko Cal. 6615 - 604

The 6615-604 is a sought-after Spring Drive piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-869e1ec68f4d]

Also known as: Helmet, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1985

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