Seiko Cal. 6387 - 176

The 6387-176 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6387 caliber with 25j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-826a3b78ba64]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1999

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